One of the first dinosaurs to be named, Massospondylus was long depicted as quadrupedal until a 2007 study found it to be bipedal.

It had a long neck and tail, with a small head and slender body. On each of its forefeet, it bore a sharp thumb claw that was used in defense or feeding.

Dino Facts

  • Pronounced: mass-owe-spon-die-luss
  • Means: Massive spine
  • Size: 13 ft (4 m)
  • Where: Southern Africa (Namibia, Zimbabwe), North America (Arizona)
  • When: Early Jurassic
  • Diet: Herbivorous